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Torque

Two masses A ...

Question

Two masses A and B are connected with an inextensible string.Their speeds are $V_{A}$ and $V_{B}$ at the moment shove The correct constraint relationship is

V_{A} c o s θ v_{B}

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V_{B} c o s θ v_{A}

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V_{A} t a n θ v_{B}

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V_{A} = V_{b}

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Solution

The correct option is A $V_{A} c o s θ v_{B}$
Velocity of both ends of the string along the length of the string should be same.
Hence, option 'A' is correct.

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